Adhesive-applying device



w. H. BAYNARD ADHESIVE APPLYING DEVICE 2 Sheefis-Sheet 1 Filed Jan. 322 1925 April 10, 1928.

1,666,039 w. H. BAYNARD.

ADHESIVE APPLYING DEVICE Filed Jan. 22, 1925 2 Sheets-Sheet 2 7/1324 am)! W4,

Patented Apr. 10, 1928.

WILLIAM H. BAYNlABD, OF BROOKLINE. MASSACHUSETTS, ASSIG-NOR TO H ARRYME'.

BECKWITH, OF BROOKLI'NE, MASSACHUSETTS. I

ADHESIVE-APPLYING DEVICE.

Application filed January 22, 1925. Serial No. 3,956.

This invention relates to devices for applymg adhesive, and while not. limited in its signed to apply latex to shoe stiffeners in order to fix the stiffeners to shoe uppers.

In order that latex may be prevented from coagulating before such coagulation is desired, ammonia is commonly added thereto and in order that the ammonia may not be lost, as well as to prevent discomfort to the operator from the ammonia fumes in the atmosphere, it is important that the supply of latex be closed off from access-to the air as much as possible. I

In order also that the applying element shall not be soon clogged by the latex coagulating thereon, it is important to protect this element from free exposure to the air and except when actually applying the latex to keep its applying portion submerged in the supply.

It has been found in practice that a brush or roller used in the usual way becomes so clogged with coagulated latex as to become ineffective as. an applicator within a few hours after it is first used in case it is exposed in the air.

This invention, therefore, provides a construction in which the latex, or other adhesive, is closed off from access by the air except during those brief periods when application is being made and even then a relatively small quantity is so exposed, and wherein the applicator is submerged except during such brief periods. I

It further provides a construction by which the stiffener or other article to which the adhesive is to be applied having been placed on a supporting platform, by a quick in and out motion of the platform by the operator, the receptacle is opened, the ap-' plicator is raised from the adhesive to the article on the platform, is caused to apply the adhesive, and is then returned to its submerged condition and the receptacle closed.

For a more complete understanding of this invention reference may be had to the accompanying drawings in which i Figure 1 is a top plan of the device showing a toe stiffener in position thereon preparatory to the application of adhesive thereto.

Figure 2 is a section on line 22 of Figure'l.

Figure 3. is a side elevation showing the pa'i'tsin the same'position. use thereto, has been more particularly de- *Figure 4 -is a fragmentary side elevation showing the adhesive being appl ed;

Figure 5 1s a fragmentary cross section similar to a portion of Figure 2, but illustrating a different adjustment-of the parts. Figure 6 is a sectional detail showing the adhesive being applied.

Referring to these figures, 1 indicates a supporting stand adapted to rest on a suitablebench or table. This stand comprises a shallow receptacle portion formed by means of an elevated base 2 and upwardly extending marginal walls 3. This receptacle is formed with an open topped portion which may be normally covered by a cover member 4. This cover member is formed as an inverted container in which is fixed the adhesive applicator 5 which may com-- prise a block of sponge rubber of sufficient size to-fill the cover and project down into the receptacle beneath the level of the adhesive therein when the cover is closed. The receptacle has a rearward extension 10 havi11 an upstandingcircular wall portion 11 de ning an opening in which the mouth of an inverted bottle or other similar latex adhesive supply tank 12 may be inserted in such a manner that when such adhesive supply is in position and the cover 4 is closed, the adhesive within the supply and the receptacle is entirely closed ofi from the external air. In order that this closure may be as complete as possible, it is preferable to place a gasket which may comprise a rubber band as 13 about the supply receptacle 12, this rubber band effecting a seal between the receptacle and the marginal wall 11. By using an inverted supply tank of this type a barometric feed of the adhesive to the forward part of the receptacle in which the applicator 5 dips is effected. y

In order that the level of the adhesive in v the receptacle may be controlled, even though bottles of various lengths of neck are employed, it is preferable to provide a supply receptacle support adjustable vertically within the extension 10. Such a support is shown at 15 in Figures 2 and 5 and comprises a horizontal annular portion 16 perforated at 17 to receive the neck of the supply bottle and a wall portion 18 which may be fixed in vertically adjusted position to the inner face of the wall 11, as for example by means of a bolt 19 passing through a. vertically elongated slot 20 and the wall.11 v and threaded into the wall 18. In Figure 2 this support is shown as holding in position a bottle having a relatively long neck, the support being in relatively elevated position, while'in Figure 5 a short neck bottle is employed, the support 15 being'in a lower positlon.

The article to which the adhesive is to be supplied may be supported on a platform which is preferablyprovided at its forward edge with a hooked finger piece 31 by which it may be rasped and moved as will later appear. T is platform-30 is pivoted between the outer spaced ends 32 of an H shaped link 33. The opposite spaced ends of this link are pivoted to lugs 34 extending outwardly in spaced relation from the stand 1. The rear edge of the platform 30 is also pivotally supported from the stand by means of a pair of links 35, the upper ends of which'are pivoted at 36 to laterally spaced; rearwardly extending ears 37 on the platform 30, these links being pivoted at their lower ends as at 38 to the. stand 1. The platform is thus mounted so that it may be positioned forwardly as shown in Figures 1 and 2, or may be pushed rearwardly to take the position over the top of the receptacle as shown in Figure 4. In order that when in this latter position the cover may be raised upwardly and the applicator brought down against an article supported on the platform, the cover 4 isvfixed to or integralwith the forward ends of a pair of arms 40 fulcrumed at their rear ends as at 41 to the upwardly extending wall 11, 'and'to In S 45 i extending upwardly at opposite ends 0 this cover are pivoted as at 47 the upper ends of links 46, the lower ends of these'linksbethe platform is moved outward in pivoted to the latform 30 at 36. The

35 and '46 t us actas toggle links which are straightened during the initial rearward movement of the platform 30 as it is moved to its position over the receptacle, this preliminary movement, therefore, acting to raise the cover 4 so that the platform may pass therebeneath and beneath the applicator 5 carried thereby. s the-platform is moved still further rearwardly the links 35 and 46 swing beyond their alinedpositionsso that the coveris brought down toward the platform, thus bringing the applicator 5 down into contact with an article supported on the platform; By pulling outwardly on the fin er hook 31', ly from be neath the applicator whose first motion is upwardly away from the article by reason of the straightening of the links 35 and 46 so that the platform and the article carried thereby are immediately freed from contact with the a plicator. As the motion of the platform orwardly is continued it moves fined by the appended claims.-

meshes out from beneath the cover 4 which. is thereupon returned to closed position by the folding of the toggle link, as shown in Figures 2 and 3 with the applicator dlpping beneath the surface of the adhesive within the receptacle and the receptacle entirely closed from access of external air to the adhesive. 7

As shown best in Figure 6, the 'stifi'ener 50 to which the adhesive is ap lied has its rear edge thinned down, as'by s 'ving, as at 51, consequently the lower face of the applicator is shaped to'engage this thin edge being inclined relative t6 the. surface of the table 30 so that the adhesive is applied over this skived portion as ,well as over that portionwhere the stiffener is of substantially uniform thickness. The action of 'the applicator is thus to come down on the stiffener with'a nearly direct up and down motion which it is found effectually applies the adhesive thereto and permits free motion of the stiffener to and from adhesive applying position.

Having thus described an embodiment of this invention it should be evident to those skilled in the art that various changes and modifications might be made therein without departing from its spiritor scope as de- I claim: p

1. A device of the class described compris inga receptacle, a cover for said receptacle,

an adhesive applicator carried by said cover,

a movable article support, and connections between said support and cover for raising said cover and mofiin the support beneath said applicator an t en lowering said applicator thereon, and for raising said ap .plicator and movin' said support from beneath said cover an then closingsaid cover. 4

2. A device of. the classdescribed comprisin a receptacle, a liquid applicator, a movab e article support, and meanswhereby on movement of said support in one direction said applicator moves from said receptacle and applies liquid to an article on said support, and whereby on movement of said sup.-

port in another direction said applicator turnsintosaidreceptacle. I

A device. of-the class described comprisinga receptacle, a cover for saidrece tacle, a liquid applicator, a movable artic e support, and means whereby onmovement res of said support in one direction said cover is openedand said applicator moves from said receptacleand'applies liquid to an article on said support, and whereby on move ment of said support in another direction said cover closes.

4 A device of the class described comprising-a receptacle, a cover for said receptacle,-means"for controlling the movement of said cover from and toward its closed position, a pair of toggle links connecting said cover and receptac e on the straightenin f which said cover is raised, a liquid applicator carried on the inner face of said cover, an article support, links connecting said support to said receptacle, and connections between said support and toggle acting to raise said cover to permit said support 'to pass thereunder as it moves over said receptacle and to then lower said cover to bring said applicator down toward said support, and to raise said cover to raise said applicator as said support is moved from over said receptacle and to then lower said cover to its closed position with said applicator extending into liquid in said receptacle.

5. A device of the class described com prising a receptacle, a cover for said recepstraightened to hold said cover raised from said receptacle, a support movable toward with said applicator.

and from said receptacle, and connections. between said support and toggle links acting to straighten said toggle links'to raise said cover as said support is moved toward said -J'eceptacle permitting said support tovpass beneath said cover, further motion of said support after the straightening of said togglelinks acting to lower said cover and to bring said applicator against an' article placed on said support 7. A device of the classfdescribed comprising a receptacle having a rearward extension shaped to receive and'enclose thereto a bottle in" lnverted position to feed a liquid barometrically to said receptacle, a cover for said receptacle in front of said extension,

a liquid applicatorcarried-on the. inside of said cover and dipping into the liquid therein when the cover is closed, and means by which the cover ma be raised topermit an article to be mov thereunder and into contact 8. A device of the class described, coinprising a receptacle having a rearward'extension shaped toreceive and enclose a bottle in inverted position to feeda liquid 'barometricall to said reee tacle, a cover for receptac in front 0 said extension, a

liquid applicator carried on the inside of said cover and dipping into the liquid therein when the coveris closed, a movablearticle support, and means for raising said applicator out of said liquid and for bringing the article on said support into contact with said applicator while out of said liquid.

9. A device of the class described, comprising an open-topped receptacle having a rearward extension, a holder for an inverted bottle in said extension adjustable to regulate by barometric pressure the level of liquid flowed from said bottle into said receptacle, a cover for said receptacle in front of said extension, and a liquid applicator carried on the inside of said cover and dipping into the liquid therein when the cover is closed, a movable article support, and means for raising said applicator out of said liquid and for bringing the article on said support into contact with said applicator while out of said liquid.

7 10. A device of the class described, comprising a receptacle having a rearward extension formedwit-h an upstanding marginal wall shaped to receive and support a bottle in inverted position therein, an annular support for the neck of the bottle and against which the portion below said neck 7 engages vertically adjustable relative to said extension to detirmine the height of said bottle mouth in t e base of said receptacle, a cover for said receptacle in front of said extension, a liquid applicator carried on the inside of said cover and dipping into the liquid therein when the cover is closed, a movable article support, and means for raising said applicator out of said liquid and for bringing the article on said support into contact with said applicator while out'of Said li uid. I

'11. device of the class described, comprising a rece tacle having a rearward extension shape to receive and enclose a bot-.

tle in inverted position to feed a liquid barometrically to said receptacle, :1. cover for saidreceptacle in front of said extension, an

applicator on the inside of'said cover and dippin into the liquid in said receptacle, a movab e article support, and connections be tween said cover and su port, by which said cover may be raised an said applicator applied to an article on said support, said cover when clowd and said bottle togetherclosin oi! the liquid in said device from access 0 external air thereto.

7 Intestimony whereof Ihave aflixed mysignature.

WILLIAM H. BAYNABD, 1 

